Business Segment Information

9 Months Ended

Sep. 30, 2011

Business Segment Information [Abstract]

Business Segment Information

Note 4:        BUSINESS SEGMENT INFORMATION

As previously mentioned, we operate in five segments. Our segments are fairly diverse with respect to the products and services they offer as well as the customers they serve. Accordingly, we organize our segments based on the products provided and industries they serve. We measure segment performance based on operating profit, which is defined as net sales less cost of sales and general, selling and administrative expenses related to a segment's operations. The costs deducted to arrive at operating profit do not include several items, such as net interest expense or income taxes. Segment assets are those assets used in the operations of that segment. Corporate assets include assets used in the operation of this segment as well as those used by or shared amongst our segments, including cash and cash equivalents, certain fixed assets, assets associated with certain employee benefit plans, and other miscellaneous assets.

The following tables set forth certain financial information by segment:

	Nine Months Ended September  30,				Three Months Ended September  30,
	2011		2010		2011		2010
Net sales:
Minerals and materials	$	360,523	$	314,417	$	123,792	$	110,332
Environmental		193,512		168,242		69,543		67,744
Oilfield services		139,756		111,052		50,175		41,204
Transportation		42,331		39,987		14,877		14,284
Intersegment sales		(27,414)		(12,048)		(10,343)		(4,742)
Total	$	708,708	$	621,650	$	248,044	$	228,822
Operating profit (loss):
Minerals and materials	$	50,980	$	42,973	$	20,110	$	12,341
Environmental		17,849		17,040		7,637		8,701
Oilfield services		14,082		9,860		5,787		4,079
Transportation		1,920		1,964		770		754
Corporate		(17,368)		(14,119)		(7,251)		(3,203)
Total	$	67,463	$	57,718	$	27,053	$	22,672
	As of Sep. 30, 2011		As of Dec. 31, 2010
Assets:
Minerals and materials	$	403,582	$	402,640
Environmental		170,798		160,053
Oilfield services		192,374		173,239
Transportation		3,877		4,071
Corporate		63,049		59,090
Total	$	833,680	$	799,093

	Nine Months Ended September 30,					Three Months Ended September 30,
	2011		2010			2011			2010
Depreciation, depletion and amortization:
Minerals and materials	$	15,337	$	12,316		$	5,518		$	4,544
Environmental		4,110		4,017			1,495			1,438
Oilfield services		9,448		8,807			3,326			3,028
Transportation		55		31			21			11
Corporate		1,995		1,299			854			427
Total	$	30,945	$	26,470		$	11,214		$	9,448
Capital expenditures:
Minerals and materials	$	17,770	$	24,367		$	8,715		$	5,297
Environmental		6,427		2,051			4,559			1,096
Oilfield services		17,796		10,264			4,898			5,358
Transportation		198		52			44			14
Corporate		1,633		1,210			808			240
Total	$	43,824	$	37,944		$	19,024		$	12,005
Research and development (income) expense:
Minerals and materials	$	4,653	$	4,331		$	1,513		$	1,572
Environmental		1,627		1,870			577			596
Oilfield services		198		510			(6	)		188
Corporate		122		(11	)		275			(51	)
Total	$	6,600	$	6,700		$	2,359		$	2,305